TY - JOUR
T1 - Perpendicular magnetization of L10-ordered FePt films in the thinnest limit
AU - Imada, S.
AU - Yamasaki, A.
AU - Suga, S.
AU - Shima, T.
AU - Takanashi, K.
N1 - Funding Information:
The authors would like to thank T. Muro and T. Nakamura of SPring-8/JASRI for their developing the XMCD measurement systems and for their support during the measurements. The authors are grateful to Y. Iguchi, T. Watanabe, and Y. Ishida for the assistance in the measurements and the analyses. This work is supported by Grant-in-Aids for COE Research (No. 10CE2004), for 21COE(G18) and for Scientific Research (No. 18360330) from MEXT and JSPS, Japan. Synchrotron radiation experiments at BL25SU, SPring-8 were performed with the approval of JASRI (Nos. 2002B0321, 2003A0673, and 2004A0450).
PY - 2007
Y1 - 2007
N2 - Ll0-ordered FePt ultrathin films with thickness down to subnanometer range were fabricated by alternate monatomic layer (ML) deposition of Fe and Pt on Pt (001) substrate and were capped by Pt. Perpendicular Fe magnetic moment under magnetic field, together with that under remanence, was detected by soft x-ray magnetic circular dichroism. Pt/(Fe 1 ML/Pt 1 ML) 3/Pt (001), whose FePt layer is ~ 1 nm thick, showed perpendicular remanent magnetization at room temperature. At low temperatures, perpendicular remanent magnetization was found even at the thinnest end, i.e., 1 ML Fe sandwiched by Pt (001).
AB - Ll0-ordered FePt ultrathin films with thickness down to subnanometer range were fabricated by alternate monatomic layer (ML) deposition of Fe and Pt on Pt (001) substrate and were capped by Pt. Perpendicular Fe magnetic moment under magnetic field, together with that under remanence, was detected by soft x-ray magnetic circular dichroism. Pt/(Fe 1 ML/Pt 1 ML) 3/Pt (001), whose FePt layer is ~ 1 nm thick, showed perpendicular remanent magnetization at room temperature. At low temperatures, perpendicular remanent magnetization was found even at the thinnest end, i.e., 1 ML Fe sandwiched by Pt (001).
UR - http://www.scopus.com/inward/record.url?scp=34047095316&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34047095316&partnerID=8YFLogxK
U2 - 10.1063/1.2717516
DO - 10.1063/1.2717516
M3 - Article
AN - SCOPUS:34047095316
VL - 90
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 13
M1 - 132507
ER -